According to a September 7 post on SharePointRelated.com, Office 365 Mail has an option that allows users to chat with their contacts using Skype for Business without leaving the browser. It’s that new option which may be triggering the message that Skype for Business is now Teams. So, perhaps this was a glitch…

Or maybe Microsoft just showed its hand ahead of an official announcement soon. I’ve asked Microsoft for comment; no word back so far.

Several Ignite sessions will be dedicated to clarifying the relationship between Microsoft Teams and Skype for Business, based on the conference’s session list. Currently, Microsoft calls its Slack competitor, Teams, “the chat-based workspace in Office 365.” The original name of Teams was “Skype Teams.”

Maybe Microsoft will be taking some of the features currently in Skype for Business Online and making them available exclusively through Teams, while leaving a core set of telephony features part of Skype for Business? I think that could clear things up a bit for users puzzled by the current overlap.

Update (September 7): It’s looking more and more like Microsoft is planning to migrate Skype for Business users toTeams. Thanks to @hoyty on Twitter, here’s a notice from an Office 365 Admin Portal dated September 7 that indicates this migration will be an opt-in experience but only for the time being — seemingly until Microsoft adds more of the features in Skype for Business to Teams.